I think I know what you were doing with the castle .. adding scale right? Just a thought. I think perhaps a boat would be thetter though ... keep the focus but give the scale .. You might also try to incorprate some of the grassy texture that the castle is on in the rest of the trrain and even the giant ... small terrains on the shoulders or something. Might add a tree or two to make it less barren .. Just a thought but good work ..